The result showed : the main cause of color change is the formation and annihilation of shallow color centers ; there exist nickel and cobalt ions in the samples ' lattice ; and the impurity ions contribute a lot to the formation of shallow color centers 结果表明:变色的主要原因是浅色心的产生与湮灭;样品晶格中存在镍、钴离子;杂质离子的存在有利于形成各种浅色心。
On the basis of catalyzing mechanism , it can raise the reaction efficiency of sodium sulfite and reduce the remains of sodium sulfite , and has evident catalyzing action by adding bivalent nickel ions and bivalent cobalt ions into the water under the condition of weak alkali 根据催化机理,在弱碱条件下加入二价镍离子和二价钴离子能提高水中亚硫酸钠的反应效率,降低水中亚硫酸钠的残余量,对亚硫酸钠的除氧效果具有明显催化作用。